Text

[Ibd91]

Hi I’ve just received a text from an unknown number stating my service will be cancelled as I’ve not agreed to your T&C is it a scam? The message is attached 

[madasaf1sh]

@Ibd91 

There is nothing attached.

Sounds and smells like a scam, have a look at these guides Phishing, Smishing & Scams. Latest info & advice. 

o2's messages will also come show o2 instead of a number.

Also if you have nay concerns then contact Guide: How to find help & contact O2 

[MI5]

@Ibd91 

It's a well known scam.
Block the number and do not follow any links.
Forward the scam text or number to 7726 - It's free.
Other ways to report here including Action Fraud website
https://www.o2.co.uk/help/safety-and-security/phishing-and-smishing-advice
How to block a number:
https://www.samsung.com/us/support/answer/ANS00062352/
https://support.apple.com/en-us/HT201229
https://community.o2.co.uk/t5/Welcome-News/Scam-Alert-Vishing-Smishing-amp-Phishing-Megaguide/td-p/1...